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https://www.readbyqxmd.com/read/29159744/treatment-and-outcome-of-synchronous-colorectal-carcinomas-a-nationwide-study
#1
A C R K Bos, R A Matthijsen, F N van Erning, M G H van Oijen, H J T Rutten, V E P P Lemmens
BACKGROUND: Synchronous colorectal carcinomas (CRC) occur in 1-8% of patients diagnosed with CRC. This study evaluated treatment patterns and patient outcomes in synchronous CRCs compared with solitary CRC patients. METHODS: All patients diagnosed with primary CRC between 2008 and 2013, who underwent elective surgery, were selected from the Netherlands Cancer Registry. Using multivariable regressions, the effects of synchronous CRC were assessed for both short-term outcomes (prolonged postoperative hospital admission, anastomotic leakage, postoperative 30-day mortality, administration of neoadjuvant or adjuvant treatment), and 5-year relative survival (RS)...
November 20, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29148627/assessment-of-endpoint-criteria-and-perceived-barriers-during-maximal-cardiorespiratory-fitness-testing-among-pregnant-women
#2
Caitlin M Hesse, Rachel A Tinius, Bailey J Cooley, Alyssa A Olenick, Maire M Blankenship, Donald L Hoover, Jill M Maples
BACKGROUND: A plateau in volume of oxygen consumption (VO2) is the primary indicator for determining if an individual has reached their maximal aerobic capacity. However, secondary criteria can also be used to identify maximal effort (i.e. lactate level, rating of perceived exertion (RPE), percent of age-predicted maximal heart rate (HR) and respiratory exchange ratio (RER)). Age and gender-specific secondary criteria have been developed for the general population, but no secondary criteria have been established for pregnant women...
November 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29078353/mutagenic-cost-of-ribonucleotides-in-bacterial-dna
#3
Jeremy W Schroeder, Justin R Randall, William G Hirst, Michael E O'Donnell, Lyle A Simmons
Replicative DNA polymerases misincorporate ribonucleoside triphosphates (rNTPs) into DNA approximately once every 2,000 base pairs synthesized. Ribonucleotide excision repair (RER) removes ribonucleoside monophosphates (rNMPs) from genomic DNA, replacing the error with the appropriate deoxyribonucleoside triphosphate (dNTP). Ribonucleotides represent a major threat to genome integrity with the potential to cause strand breaks. Furthermore, it has been shown in the bacterium Bacillus subtilis that loss of RER increases spontaneous mutagenesis...
October 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29071088/stair-ascending-descending-exercise-accelerates-the-decrease-in-postprandial-hyperglycemia-more-efficiently-than-bicycle-exercise
#4
Tetsuo Takaishi, Tatsuya Hayashi
OBJECTIVE: Stair climbing-descending exercise (ST-EX) is a convenient method to increase exercise intensity. We compared the acute effect of ST-EX on lowering postprandial hyperglycemia with that of constant bicycle exercise (BI-EX) performed at the same heart rate (HR). RESEARCH DESIGN AND METHODS: Seven people with type 2 diabetes and seven with impaired glucose tolerance volunteered for this study. The step rate for ST-EX and work rate for BI-EX were individually determined to correspond to high-moderate to low-vigorous intensity (HR ~130 beats per minute)...
2017: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/29050339/aberrant-expression-of-oatp1b3-in-colorectal-cancer-liver-metastases-and-its-clinical-implication-on-gadoxetic-acid-enhanced-mri
#5
Seung Hyun Park, Honsoul Kim, Eun Kyung Kim, Hogeun Kim, Dong Kyu Choi, Yong Eun Chung, Myeong-Jin Kim, Jin-Young Choi
PURPOSE: To investigate the factors associated with hepatobiliary phase (HBP) enhancement at gadoxetic acid-enhanced magnetic resonance imaging (MRI) and to determine whether HBP images could be used to predict prognosis in patients with colorectal cancer liver metastasis (CRLM). RESULTS: Of the 96 total nodules, 65 and 31 nodules were in the mixed and clearly hypointense groups, respectively. In the 55 nodules without preoperative chemotherapy, organic anionic transporting polypeptide 1B3 (OATP1B3) expression was a significant factor regarding the HBP enhancement (P=0...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29038746/influence-of-exercise-duration-on-cardiorespiratory-responses-energy-cost-and-tissue-oxygenation-within-a-6-hour-treadmill-run
#6
Hugo A Kerhervé, Scott McLean, Karen Birkenhead, David Parr, Colin Solomon
PURPOSE: The physiological mechanisms for alterations in oxygen utilization ([Formula: see text]) and the energy cost of running (Cr ) during prolonged running are not completely understood, and could be linked with alterations in muscle and cerebral tissue oxygenation. METHODS: Eight trained ultramarathon runners (three women; mean ± SD; age 37 ± 7 yr; maximum [Formula: see text] 60 ± 15 mL min(-1) kg(-1)) completed a 6 hr treadmill run (6TR), which consisted of four modules, including periods of moderate (3 min at 10 km h(-1), 10-CR) and heavy exercise intensities (6 min at 70% of maximum [Formula: see text], HILL), separated by three, 100 min periods of self-paced running (SP)...
2017: PeerJ
https://www.readbyqxmd.com/read/29035870/oxidative-stress-and-cytotoxicity-elicited-lipid-peroxidation-in-hemocytes-of-bombyx-mori-larva-infested-with-dipteran-parasitoid-exorista-bombycis
#7
Makwana Pooja, Appukuttan Nair R Pradeep, Shambhavi P Hungund, Chandrashekhar Sagar, Kangayam M Ponnuvel, Arvind K Awasthi, Kanika Trivedy
Parasitization of silkworm, Bombyx mori by invasive larva of dipteran parasitoid Exorista bombycis caused upto 20% revenue loss in sericulture. The parasitism was successful by suppressing host immune system however mechanism of immune suppression induced by E. bombycis is unknown which is unravelled here. The infestation induced cytotoxic symptoms in host hemocytes, such as vacuolated cytoplasm, porous plasma membrane, indented nuclei with condensed chromatin and dilated RER. One of the markers of necrosis is cell permeabilization, which can be measured as released lactate dehydrogenase (LDH)...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/29018608/development-and-validation-of-near-infrared-spectroscopy-for-the-prediction-of-forage-quality-parameters-in-lolium-multiflorum
#8
Zhongfu Yang, Gang Nie, Ling Pan, Yan Zhang, Linkai Huang, Xiao Ma, Xinquan Zhang
Italian ryegrass (Lolium multiflorum) is an important cool-season, annual forage crop for the grassland rotation system in Southern China. The primary aim of breeding programs is always to seek to improve forage quality in the animal productivity system; however, it is time- and labor-consuming when analyzed excessive large number of samples. The main objectives of this study were to construct near-infrared reflectance spectroscopy (NIRS) models to predict the forage chemistry quality of Italian ryegrass including the concentrations of crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), and water soluble carbohydrate (WSC)...
2017: PeerJ
https://www.readbyqxmd.com/read/28978546/subcutaneous-inguinal-white-adipose-tissue-is-responsive-to-but-dispensable-for-the-metabolic-health-benefits-of-exercise
#9
Willem T Peppler, Logan K Townsend, Carly M Knuth, Michelle T Foster, David C Wright
Exercise training has robust effects on subcutaneous inguinal white adipose tissue (iWAT), characterized by a shift to a brown adipose tissue (BAT) like phenotype. Consistent with this, transplantation of exercise-trained iWAT into sedentary rodents activates thermogenesis and improves glucose homeostasis, suggesting that iWAT metabolism may contribute to the beneficial effects of exercise. However, it is yet to be determined if adaptations in iWAT are necessary for the beneficial systemic effects of exercise...
October 3, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28968061/comparative-in-vivo-investigation-of-intrathecal-and-intracerebroventricular-administration-with-melanocortin-ligands-mtii-and-agrp-into-mice
#10
Danielle N Adank, Mary M Lunzer, Cody J Lensing, Stacey L Wilber, Amy M Gancarz, Carrie Haskell-Luevano
Central administration of melanocortin ligands has been used as a critical technique to study energy homeostasis. While intracerebroventricular (ICV) injection is the most commonly used method during these investigations, intrathecal (IT) injection can be equally efficacious for the central delivery of ligands. Importantly, intrathecal administration can optimize exploration of melanocortin receptors in the spinal cord. Herein, we investigate comparative IT and ICV administration of two melanocortin ligands, the synthetic MTII (Ac-Nle-c[Asp-His-DPhe-Arg-Trp-Lys]-NH2) MC4R agonist and agouti-related peptide [AGRP(87-132)] MC4R inverse agonist/antagonist, on the same batch of age-matched mice in TSE metabolic cages undergoing a nocturnal satiated paradigm...
October 19, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28936339/utility-of-vs38c-in-the-diagnostic-and-prognostic-assessment-of-osteosarcoma-and-other-bone-tumours-tumour-like-lesions
#11
E S Hookway, Z Orosz, Y Uchihara, A Grigoriadis, A B Hassan, U Oppermann, N A Athanasou
BACKGROUND: VS38c is a monoclonal antibody that recognises a rough endoplasmic reticulum (rER) intracellular antigen termed cytoskeleton-linking membrane protein 63. rER is typically found in viable tumour cells and is abundant in osteosarcoma cells. The aim of this study was to determine the diagnostic and prognostic utility of VS38c in the histological assessment of osteosarcoma and other bone tumours/tumour-like leisons. METHODS: Immunohistochemical staining with VS38c was carried out on formalin-fixed specimens of osteosarcoma (pre/post-chemotherapy) and a wide range of benign and malignant bone lesions...
2017: Clinical Sarcoma Research
https://www.readbyqxmd.com/read/28921536/technical-note-a-simulation-study-on-the-feasibility-of-radiotherapy-dose-enhancement-with-calcium-tungstate-and-hafnium-oxide-nano-and-microparticles
#12
Nicholas J Sherck, You-Yeon Won
PURPOSE: To assess the radiotherapy dose enhancement (RDE) potential of calcium tungstate (CaWO4 ) and hafnium oxide (HfO2 ) nano- and microparticles (NPs). A Monte Carlo simulation study was conducted to gauge their respective RDE potentials relative to that of the broadly studied gold (Au) NP. The study was warranted due to the promising clinical and preclinical studies involving both CaWO4 and HfO2 NPs as RDE agents in the treatment of various types of cancers. The study provides a baseline RDE to which future experimental RDE trends can be compared to...
September 18, 2017: Medical Physics
https://www.readbyqxmd.com/read/28913348/the-use-of-partial-least-square-regression-and-spectral-data-in-uv-visible-region-for-quantification-of-adulteration-in-indonesian-palm-civet-coffee
#13
Diding Suhandy, Meinilwita Yulia
Asian palm civet coffee or kopi luwak (Indonesian words for coffee and palm civet) is well known as the world's priciest and rarest coffee. To protect the authenticity of luwak coffee and protect consumer from luwak coffee adulteration, it is very important to develop a robust and simple method for determining the adulteration of luwak coffee. In this research, the use of UV-Visible spectra combined with PLSR was evaluated to establish rapid and simple methods for quantification of adulteration in luwak-arabica coffee blend...
2017: International journal of food science
https://www.readbyqxmd.com/read/28912726/cardiovascular-and-muscular-consequences-of-work-matched-interval-type-of-concentric-and-eccentric-pedaling-exercise-on-a-soft-robot
#14
Martin Flück, Rebekka Bosshard, Max Lungarella
Eccentric types of endurance exercise are an acknowledged alternative to conventional concentric types of exercise rehabilitation for the cardiac patient, because they reduce cardiorespiratory strain due to a lower metabolic cost of producing an equivalent mechanical output. The former contention has not been tested in a power- and work-matched situation of interval-type exercise under identical conditions because concentric and eccentric types of exercise pose specific demands on the exercise machinery, which are not fulfilled in current practice...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28892419/the-effect-of-a-backpack-hip-strap-on-energy-expenditure-while-walking
#15
Jamie Pigman, William Sullivan, Steven Leigh, Peter A Hosick
Objective To examine the effect of backpack hip strap use on walking energy expenditure while carrying a loaded backpack. Background Previous studies have demonstrated that energy cost increases as the mass of the load carried increases. However, few investigations have focused on backpack carriage design. Methods Fifteen young, healthy, male subjects walked at a self-selected pace for 10 minutes in two backpack loading conditions: with a hip strap (strapped) and without a hip strap (nonstrapped). Oxygen consumption (VO2), rating of perceived exertion (RPE), respiratory exchange ratio (RER), and heart rate (HR) were monitored throughout each 10-minute trial...
December 2017: Human Factors
https://www.readbyqxmd.com/read/28874630/decellularized-human-dermal-matrix-produced-by-a-skin-bank-a-new-treatment-for-abdominal-wall-defects
#16
Martina Ghetti, Elena Bondioli, Valeria Purpura, Giovanna Cenacchi, Paolo Ruscelli, Davide Melandri
BACKGROUND: Interest is increasing for human decellularized scaffolds for their ability to favor healing and cell infiltration after transplantation, in the treatment of abdominal wall defects. The purpose of the present study is to show the clinical results obtained after the application of human decellularized dermal matrix (HDM) produced by RER Skin Bank, on patients suffering from different abdominal wall defects. METHODS: Between 2012 and 2014, 64 patients, average age 64 years, received HDM, to replace and cover the damage area during abdominal wall surgery...
July 25, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28860186/heat-shock-protein-47-and-65-kda-fk506-binding-protein-weakly-but-synergistically-interact-during-collagen-folding-in-the-endoplasmic-reticulum
#17
Yoshihiro Ishikawa, Paul Holden, Hans Peter Bächinger
Collagen is the most abundant protein in the extracellular matrix in humans and is critical to the integrity and function of many musculoskeletal tissues. A molecular ensemble comprising more than 20 molecules is involved in collagen biosynthesis in the rough endoplasmic reticulum. Two proteins, heat shock protein 47 (Hsp47/SERPINH1) and 65-kDa FK506-binding protein (FKBP65/FKBP10), have been shown to play important roles in this ensemble. In humans, autosomal recessive mutations in both genes cause similar osteogenesis imperfecta phenotypes...
October 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28853156/characterization-and-predicting-of-carbohydrate-content-in-zucchini-fruit-using-near-infrared-spectroscopy
#18
Teresa Pomares-Viciana, Damián Martínez-Valdivieso, Rafael Font, Pedro Gómez, Mercedes Del Rio-Celestino
BACKGROUND: Zucchini fruit plays an important part in healthy nutrition due to its high content of carbohydrates. Recent studies have demonstrated the feasibility of Vis/NIRS to predict quality profile. However, this procedure has not been applied to determinate carbohydrates. RESULTS: VIS-NIR and wet chemical methods were used to determinate individual sugars and starch in zucchini fruits. By applying a principal component analysis (PCA) with NIR spectral data a differentiation between the less sweet vs...
August 29, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28846671/effects-of-postnatal-overfeeding-and-fish-oil-diet-on-energy-expenditure-in-rats
#19
Yanyan Dai, Nan Zhou, Fan Yang, Shanshan Zhou, Lijun Sha, Jianping Wang, Xiaonan Li
BACKGROUD: Early life nutrition may have a role in the regulation of metabolism in adulthood. The present study aimed to evaluate the effects of postnatal overfeeding and a postweaning fish oil diet on energy expenditure. METHODS: On postnatal day 3, rat litters were adjusted to a litter size of three (small litters, SLs) or ten (normal litters, NLs). After weaning, SLs were fed the standard diet or a fish oil diet enriched with polyunsaturated fatty acids (SL-FOs) for 10 weeks...
August 28, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28841254/functional-capacity-in-a-rat-model-of-heart-failure-impact-of-myocardial-infarction-size
#20
Vítor Scotta Hentschke, Lucas Capalonga, Douglas Dalcin Rossato, Júlia Luíza Perini, Jadson Pereira Alves, Edson Quagliotto, Giuseppe Potrick Stefani, Marlus Karsten, Mauro Pontes, Pedro Dal Lago
Oxygen uptake (VO2 ) and exercise tolerance in rats classified by myocardial infarction (MI) size are underexplored. The aim of this study was to evaluate VO2 /carbon dioxide production (VCO2 ) and exercise tolerance in rats that have undergone MI. Fourteen weeks after MI or sham surgery, rats underwent an integrated approach to left ventricular function and VO2 /VCO2 , exercise tolerance and skeletal muscle weight evaluation. Based on MI size determination, rats were assigned to sham operated controls (Sham, n = 12), small myocardial infarction (SMI, n = 8), and large myocardial infarction (LMI, n = 5) groups...
August 25, 2017: Experimental Physiology
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